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Home My WebLink AboutCOM 0424.001 2022-2024HEATHER L. KIMBALL COUNCIL CHAIR Council District I (North Hilo, Mm5kua, and portion of Waimea) Phone: (808) 961-8828 (808) 961-8912 Email: heather. h hnhaff"�_�&q ��aiic LL I'L -L )gLY, . W HAWAPI COUNTY COUNCIL COUNTY OF HAWAPI 25 A upuni Street, Ste. 1402, Hilo, Hawai'i 96720 DATE: September 14, 2023 TO: Hawaii County Council Members , Heather KimballCouncil Chair hair',-., Council District 1, County of Hawaii SUBJECT: Presentation material from USDA Forest Service: Discussion Support to Improve Ridge -to -Reef Stewardship in an Era of Rapid Global Change We have been presented with a slide deck by the USDA Forest Service for the presentation scheduled to be heard by the Communications, Reports, and Council Oversight Committee on September 19, 2023. Please process and distribute the attached slide deck which summarizes the challenges and opportunities involving ridge to reef stewardship. Should you have any questions regarding this request, please do not hesitate to contact me. Thank you. Hawai'i County is an Equal Opportunity Provider and Employer 14. I Comm. - No. LL 1 R4E To: C Itef. tote 1, 9 2023 Decision Support to Improve Ridge -to -Reef Stewardship in an Era of Rapid Global Change Septeinber 2023 HM1VFRUTV USDA , AKAKA FOUNDATION PM FO0.TPIO-ALFCR5TS R e ef < To h—rd Ridge L e e it, a r d ride IV i it d ji, a r d s i d e Ch"'we . ......... U nw Imcniftitnt D P".RW Lwmz� - - - --------- 41 1 ' — . '.11' .1.... 11—ght , .. lAnIt"flon . .. _ -. r _ _ .- — F.—... ..- ,.. .1 .._. y CenlamlRYniS :} -�}�— G.W-w R—kid, —ter. of H AWA I'l SYSTEM �,��,,,�. Ali 77,' ORISE To o. R e e f Sea WO'Wo, CORE GEOGRAPHIES North Kona- South Kohala North Hilo-Hamakua ' t 3 South Kona CORE QUESTIONS 1. How do we model the ridge to reef impacts of invasive species, climate change, fire, and development? 2. What are the solutions that we need to conceptualize and integrate into our hydrological modeling? 3. How do we integrate these modeled solutions into support tools for complex decision making? CENTRAL THREATS & CHALLENGES CONSIDERED Invasive Plants & Animals - Challenge: where, how, and at what scale to meet conservation & restoration objectives with cost being an overriding consideration Reef' c To R i ri , v North Hilo- Hamakua Strawberry guava (% i Law Climate Change - Challenge: where® how® and at what scale to meet conservation & restoration objectives given �Yfielgi.SLI , ujJeL'L.5 of drought, warming, fires, bleaching on ridge to reef ecosystems CENTRAL THREATS & CHALLENGES CONSIDERED Wild ire - Challenge: where, how, and at what scale to meet fuel load & restoration objectives, with cost & human safety being overriding considerations ✓y� l'F�j3i i •t a, Pau a hoes Mai nei Ma] La -aws Mai a fiamakua a lave Mau Mai aua Inkou i ua louo eo ke abi e Ulupa la i ua ululwlu wa is apaoa. Ua hoomaka kaia ahi a u i ka l:t o Iulai a hiki i ka la 6 o Sept. Ibo Oe3 nia no o1a ke bawa la i na Mea Ulu a Pau a loaa An aua iaia. He 20,000 eka o ka aiva hauai bvloholoua o Flm—L-:. i Ethnohistoric fire record, Alyssa Anderson Osns Denser► 10.1 • 40.0 40.1 - 100 101 - 1.130 Hawaii DOH 2O14 50000 40000 m B 30000 m 20000 m Q Wildfire Occurrence in Hawaii Anni ial area hi irnizd statP\niirlP from 1 c)nA-?n?1 1904 1913 1922 1931 1940 1949 1958 1961 1976 1985 1994 2003 2012 2021 Year Development - Challenge: where, how, and at what scale to meet low impact development objectives, with coral health being overriding consideration THESE CHALLENGES OCCUR WITHIN RICH ECO-CULTURAL WORLDS & HISTORIES Pili Productions Kahuku ,� � add `� "' • � Kiolaka'a, Pu' Bishop Museum PARTNERS & COLLABORATION - Watershed Partnerships - State & Federal Conservation Agencies - Community -based Stewardship NGOs - Conservation Education Programs - Hawai`i County R&D, Mayor's Office - Hawai`i County Council Akoko Foundation Vl.:`5E I1:R WATERSHED DECISION SUPPORT Forest Fcology and Management 400 (2017) 300-320 Contents lists available at ScienceDirect Forest Ecology and Management journal homepage: www.elsevier.com/locate/foreco A watershed decision support tool for managing invasive species on crossMark Hawaii Island, USA Nicholas A. Povak `,''," , Paul F. Hessburg ', Christian P. Giardina', Keith M. Reynolds', Chris Heider", Ed Salminen', R. Brian Salter", Richard A. MacKenzie a r 1 It ' r 1 F , rl• 1 11 d ii �y!� i ��'� j�%� -- �f � 'f�t$i � %!�% _ 1 rr r rll• � idr� tr r 1 r'^•. �� yt .- rr1 ,,,+' ,ram/ � �yF ' 1r 1 17 ? f ry,if/ a ,�• Syr ®��';" - �/ y y� Y r r r r r r r r: -s y. � y f }' .. , - - �.► �"'.�"' d.,. ,may..-� a'v w:`. G.,•"`� � „� w _ 4 � �� r DECISION SUPPORT TOOL BUILD Step 1. Stakeholder input and spatial data development: (e.g., logic score, costs, ownership, access, habitat quality) Savanna restoration: Decision score (Logic) 8 0.00-0.12 N 012.0 2S ® 0215438 0 03"50 n 0 W-0 E2 i 062-075 a 0 7SS-0 88 ■ 0 "11 00 Step 2• Catchment -level hydrology Step 3. NetWeaver* logic model: Assess state of ecosystem 1 - , ►,tcC.FF t W iC FF 00- 4A -i - rj 4r) Low High PUFF ct FF CC P jFF-CQ LOW Hsgh Potential sedhtweet Potential groundwater Current savanna decrea" increase coverage Step 55. M a p Step 4. Multi -criteria decision model: decision model Weight criteria, cakullate priority scores results, compare alternatives Criterion Weight -------------- - - - - -> Logic I Q Effort JE] Diversity El Criterion Effort Diversity Forest edge Source: Povak et al. 2020. A decision support tool for the conservation of tropical forest and nearshore environments on Babeldaob Island, Palau 17 269 331 366 252 57 154 143 429 368 68 75 305 132 353 369 301 217 247 285 28 87 344 194 255 225 10, 83 53 292 46 348 0 Vvhakulca Tralning Area IMPROVED SOCIO-ECOLOGICAL DATASETS Vegetation Ecology Carbon Sequestration Modeling Forest Health Mapping Coral Health Mapping Improved Digital Elevation Model Updated Infrastructure layer Fire Ecology Climate dynamics & change Indigenous Geographies Community -based stewardship HYDROLOGICAL MODELING Watershed limit (1) North ilo- (2) North Kona — Hamakua Co s South Kohala (816KM2 (, 1700Km Z) (3) South Kona (1026Km Z) ' F Implement existing data and identify data gap? Model representation Windward side (WET) Leeward side'. (DRY) Mean Annual Rainfall Island of Hawa71 vn�nwrya!rawer.ei•uxe ti Aainfall p s�*k a IFS✓"'.. �<,.�4� _ _ -. - Estimation of outflows into the ocean Submarine groundwater discharge (SGD) Impact of this outflow to the reef development? � t DLNR " � � \ 1 � �+t« w,��4 + fir• ''�, \'�, + 1, r �, a �; a► � t F P. DLNR P Big Island Now- Aug 8 2023, N Kohala g f i DLNR P Big Island Now- Aug 8 2023, N Kohala • MODELING Ungulates Climate Change SPI 1e srourh' Eve -its W21� 2023: North Kv'Ia Drought Events=16 Sovoro Droughts ® 7 Extreme Droughts = 2 I F--------------- - - - - -- - I�---- Pacific Drought Knowledge Exchange Fire Nearshore Currents N Pac100S Development hi MODELING Ungulates Climate Change SPI ie Drourh' Eve -its W21� 2023: North Kv'Ia Drought Events = 16 Sovoro Draughts r 7 Extr+ama Droughts ■ 2 I Pacific Drought Knowledge Exchange Fire Nearshore Currents N 41r 4V VV Pac100S Halepiula Keanakolu a Hopuwai �r Hvmuula-Upper d Piihonua ti�ry��/ate p�4 «Sr,�iluku �q, e SCENARIO DEVELOPMENT HI10 Forest :/`.r✓ Reserve Kahfti ri=v:7eekea7 Indigenous Agro-ecological Systems Restoration Development Projections Community -level Waste Water Treatment Solutions Piihonua "aw Future Climate Projections Rapid `Ohi`a Death Projections n _ h ,q M., ^ a P ✓ Y ...., +�y,�- .. �' ^ , ,yam a� 1 y x ° _ � a % o- I w a � MAHALO! QUESTIONS?